Flat grade share
- TBK Bank Quad Cities Marathon
- 85.7% Favoured
TBK Bank Quad Cities Marathon vs Cedar Rapids Marathon
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofTBK Bank Quad Cities Marathon or Cedar Rapids Marathon — which comes out ahead?
TBK Bank Quad Cities Marathon has the stronger available profile on flat grade share, course flatness and scenery score.
Route comparison snapshot
TBK Bank Quad Cities Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.2% Favoured
- flat grade share
- 85.7% Favoured
- lower ascent
- 180 m
- climbing density
- 4.3 m/km
- net elevation
- -5 m
- maximum grade
- 9.0%
Cedar Rapids Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 1.4%
- flat grade share
- 63.8%
- lower ascent
- 454 m
- climbing density
- 10.8 m/km
- net elevation
- -1 m
- maximum grade
- 15.8%
| Metric | TBK Bank Quad Cities Marathon | Cedar Rapids Marathon |
|---|---|---|
| Flat grade share | 85.7% ✓ | 63.8% |
| GAP factor (% slower than flat) | 0.2% ✓ | 1.4% |
| Uphill share | 7.5% | 19.0% |
| Steep-up share | 0.2% | 4.3% |
| Downhill share | 6.7% | 17.2% |
| Total ascent (m) | 180 m | 454 m |
| Climbing density (m/km) | 4.3 m/km | 10.8 m/km |
| Longest climb length (m) | 1,250 m | 480 m |
| Longest climb gain (m) | 35 m | 36 m |
| Longest climb average grade | 2.8% | 7.5% |
| Total descent (m) | 185 m | 455 m |
| Net elevation (m) | -5 m | -1 m |
| Max absolute grade | 9.0% | 15.8% |
| Start elevation (m) | 172 m | 217 m |
| Finish elevation (m) | 168 m | 215 m |
| Scenic score | 89/100 ✓ | 76/100 |
| Conditions | 59/100 | 75/100 ✓ |
GAP factor (% slower than flat)
- TBK Bank Quad Cities Marathon
- 0.2% Favoured
Uphill share
Steep-up share
Downhill share
Total ascent (m)
Climbing density (m/km)
- TBK Bank Quad Cities Marathon
- 4.3 m/km
- Cedar Rapids Marathon
- 10.8 m/km
Longest climb length (m)
Longest climb gain (m)
Longest climb average grade
Total descent (m)
Net elevation (m)
Max absolute grade
Start elevation (m)
Finish elevation (m)
Scenic score
- TBK Bank Quad Cities Marathon
- 89/100 Favoured
- Cedar Rapids Marathon
- 76/100
Conditions
- Cedar Rapids Marathon
- 75/100 Favoured
Only metrics available for at least one side are shown. A ✓ marks the better value for each metric (higher-is-better aware). Scores are out of 100 when available. Ascent, climbing density, max absolute grade and median finish describe course or field context and are not marked as better or worse.
Race facts that change the decision
| Fact | TBK Bank Quad Cities Marathon | Cedar Rapids Marathon |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2026-09-27 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2027-04-25 (legacy event-level date). |
| Location | Davenport, Iowa | Cedar Rapids, Iowa |
| Actual distance | 42.2 km | 42.2 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Course type | Loop | Loop |
| Surface | Unavailable | Road |
| Elevation character | Flat | Gently Rolling |
| Terrain | Unavailable | Road, Trail |
| Scenery | Riverside, Island, City, Waterfront, Historic | Riverside, City, Historic, Parkland, Waterfront |
| Atmosphere | Unavailable | Community, Festival |
| Technicality | Non Technical | Non Technical |
| Total ascent | 180 m | 454 m |
| Climbing density | 4.3 m/km | 10.8 m/km |
| Total descent | 185 m | 455 m |
| Net elevation | -5 m | -1 m |
| Max absolute grade | 9.0% | 15.8% |
| Flat grade share | 85.7% | 63.8% |
| GAP factor | 0.2% | 1.4% |
| Cutoff | 7:00:00 | 7:00:00 |
| Entry model | Open | Open |
| Qualifying status | Boston_equivalent | Boston_equivalent |
Schedule
- TBK Bank Quad Cities Marathon
Exact race date not confirmed. Event weekend starts 2026-09-27 (legacy event-level date).
- Cedar Rapids Marathon
Exact race date not confirmed. Event weekend starts 2027-04-25 (legacy event-level date).
Location
- TBK Bank Quad Cities Marathon
- Davenport, Iowa
- Cedar Rapids Marathon
- Cedar Rapids, Iowa
Actual distance
- TBK Bank Quad Cities Marathon
- 42.2 km
- Cedar Rapids Marathon
- 42.2 km
raceindex.org mapped route held
- TBK Bank Quad Cities Marathon
- Held
- Cedar Rapids Marathon
- Held
raceindex.org elevation profile held
- TBK Bank Quad Cities Marathon
- Held
- Cedar Rapids Marathon
- Held
Course type
- TBK Bank Quad Cities Marathon
- Loop
- Cedar Rapids Marathon
- Loop
Surface
- TBK Bank Quad Cities Marathon
- Unavailable
- Cedar Rapids Marathon
- Road
Elevation character
- TBK Bank Quad Cities Marathon
- Flat
- Cedar Rapids Marathon
- Gently Rolling
Terrain
- TBK Bank Quad Cities Marathon
- Unavailable
- Cedar Rapids Marathon
- Road, Trail
Scenery
- TBK Bank Quad Cities Marathon
- Riverside, Island, City, Waterfront, Historic
- Cedar Rapids Marathon
- Riverside, City, Historic, Parkland, Waterfront
Atmosphere
- TBK Bank Quad Cities Marathon
- Unavailable
- Cedar Rapids Marathon
- Community, Festival
Technicality
- TBK Bank Quad Cities Marathon
- Non Technical
- Cedar Rapids Marathon
- Non Technical
Total ascent
- TBK Bank Quad Cities Marathon
- 180 m
- Cedar Rapids Marathon
- 454 m
Climbing density
- TBK Bank Quad Cities Marathon
- 4.3 m/km
- Cedar Rapids Marathon
- 10.8 m/km
Total descent
- TBK Bank Quad Cities Marathon
- 185 m
- Cedar Rapids Marathon
- 455 m
Net elevation
- TBK Bank Quad Cities Marathon
- -5 m
- Cedar Rapids Marathon
- -1 m
Max absolute grade
- TBK Bank Quad Cities Marathon
- 9.0%
- Cedar Rapids Marathon
- 15.8%
Flat grade share
- TBK Bank Quad Cities Marathon
- 85.7%
- Cedar Rapids Marathon
- 63.8%
GAP factor
- TBK Bank Quad Cities Marathon
- 0.2%
- Cedar Rapids Marathon
- 1.4%
Cutoff
- TBK Bank Quad Cities Marathon
- 7:00:00
- Cedar Rapids Marathon
- 7:00:00
Entry model
- TBK Bank Quad Cities Marathon
- Open
- Cedar Rapids Marathon
- Open
Qualifying status
- TBK Bank Quad Cities Marathon
- Boston_equivalent
- Cedar Rapids Marathon
- Boston_equivalent
Facts are shown only when they exist in the sourced race record; Not held means no sourced value is held for that race.
Common questions
Which is flatter, TBK Bank Quad Cities Marathon or Cedar Rapids Marathon?
TBK Bank Quad Cities Marathon has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.